A new book on Hillary Clinton claims she underwent secret plastic surgery ahead of her current run for president.

Ed Klein writes in “Unlikeable” that Bill Clinton “wanted her to get a face-lift,” and “She couldn’t do anything about the calendar — she’d be 69 years old in 2016 — but she could do something about the lines and sagging skin on her face.”

But Klein claims, “She had no intention of going to a clinic,” and asked a well-known plastic surgeon to go to her house in Chappaqua, NY, where he set up a “mini operating room in her home with the latest medical equipment.”

“She had her cheeks lifted and her wrinkles and lines Botoxed . . . She had work done on her eyes as well as on her neck and forehead.”

Quoting one of Hillary’s friends, Klein continues, “She took it gradually and didn’t have anything drastic done, because she wanted to evaluate the changes as she proceeded. If it had started to make her look weird, she would have stopped it immediately. It was a pretty big deal and required multiple visits.”

Nick Merrill, Clinton’s spokesman, didn’t get back to us Monday night, but has said of Klein’s new book, “Someone should do a book about Ed. They could call it ‘Bulls - - t: The Problem With Anything Ed Klein Writes.’

“The only true thing about him is his consistent and utter lack of a relationship with the facts,” Merrill has said. “He has more hair than credibility, and the man is bald. So we’re not going to get down in the gutter with him and his outrageous fabrications.”

Clinton herself has laughed off attacks on her appearance. “All our presidents come into office looking so vigorous. And then we watch their hair grow grayer and grayer,” she said in June, poking fun at her blond hairdo. “Well, I may not be the youngest candidate in this race. But I will be the youngest woman president in the history of the United States! And the first grandmother, as well. And one additional advantage: You won’t see my hair turn white in the White House.”